WO2001026216A1 - Amplificateur - Google Patents

Amplificateur Download PDF

Info

Publication number
WO2001026216A1
WO2001026216A1 PCT/EP2000/009406 EP0009406W WO0126216A1 WO 2001026216 A1 WO2001026216 A1 WO 2001026216A1 EP 0009406 W EP0009406 W EP 0009406W WO 0126216 A1 WO0126216 A1 WO 0126216A1
Authority
WO
WIPO (PCT)
Prior art keywords
input
input transistor
transistor
circuit
signals
Prior art date
Application number
PCT/EP2000/009406
Other languages
English (en)
Inventor
Marcel H. W. Van De Westerlo
Original Assignee
Koninklijke Philips Electronics N.V.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koninklijke Philips Electronics N.V. filed Critical Koninklijke Philips Electronics N.V.
Priority to DE60045575T priority Critical patent/DE60045575D1/de
Priority to JP2001529070A priority patent/JP2003524319A/ja
Priority to EP00969308A priority patent/EP1149466B1/fr
Priority to US09/856,928 priority patent/US6496069B1/en
Publication of WO2001026216A1 publication Critical patent/WO2001026216A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
    • H03F1/22—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively
    • H03F1/226—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements by use of cascode coupling, i.e. earthed cathode or emitter stage followed by earthed grid or base stage respectively with junction-FET's
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/26—Push-pull amplifiers; Phase-splitters therefor
    • H03F3/265—Push-pull amplifiers; Phase-splitters therefor with field-effect transistors only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

L'invention concerne un amplificateur qui comporte un circuit en cascade comprenant un circuit d'entrée, un circuit en cascade et un circuit de sortie. Le circuit d'entrée reçoit des signaux d'entrée par l'intermédiaire d'une entrée (10), ces signaux d'entrée étant transformés en signaux amplifiés par le circuit en cascade. Ces signaux amplifiés sont ensuite acheminés à une sortie (94) par le circuit de sortie. Le circuit en cascade comporte deux transistors d'entrée (40 et 62) et un transistor de sortie (74). Au moyen de trois condensateurs (32, 46, 50) et d'une bobine (48), le circuit en cascade est formé de façon que les transistors d'entrée (40, 62) soient connectés en parallèle pour des signaux d'entrée à haute fréquence, et que les transistors d'entrée (40, 62) soient connectés en série pour des signaux d'alimentation à basse fréquence. La transconductance est ainsi doublée, tandis que le courant collecteur continu ou le courant drain demeure inchangé. La transconductance doublée entraîne une réduction importante de la contribution du circuit en cascade à la distorsion d'intermodulation dans les signaux amplifiés. Etant donné que le courant collecteur continu ou le courant drain demeure inchangé, la puissance dissipée dans l'amplificateur demeure sensiblement la même.
PCT/EP2000/009406 1999-10-01 2000-09-25 Amplificateur WO2001026216A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE60045575T DE60045575D1 (de) 1999-10-01 2000-09-25 Verstärker
JP2001529070A JP2003524319A (ja) 1999-10-01 2000-09-25 増幅器
EP00969308A EP1149466B1 (fr) 1999-10-01 2000-09-25 Amplificateur
US09/856,928 US6496069B1 (en) 1999-10-01 2000-09-25 Cascode circuit capable of contributing a comparatively low intermodulation distortion in the amplified signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP99203205 1999-10-01
EP99203205.2 1999-10-01

Publications (1)

Publication Number Publication Date
WO2001026216A1 true WO2001026216A1 (fr) 2001-04-12

Family

ID=8240700

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/009406 WO2001026216A1 (fr) 1999-10-01 2000-09-25 Amplificateur

Country Status (5)

Country Link
US (1) US6496069B1 (fr)
EP (1) EP1149466B1 (fr)
JP (1) JP2003524319A (fr)
DE (1) DE60045575D1 (fr)
WO (1) WO2001026216A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003019774A2 (fr) * 2001-08-23 2003-03-06 Koninklijke Philips Electronics N.V. Circuit amplificateur de puissance haute frequence
WO2003090345A1 (fr) 2002-04-19 2003-10-30 Koninklijke Philips Electronics N.V. Circuit amplificateur electronique

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7683718B2 (en) * 2006-05-17 2010-03-23 Dishop Steven M Solid-state RF power amplifier for radio transmitters
US8031003B2 (en) * 2006-05-17 2011-10-04 Dishop Steven M Solid-state RF power amplifier for radio transmitters
US9219450B1 (en) * 2014-01-07 2015-12-22 Lockheed Martin Corporation High linearity low noise amplifier
US9231537B1 (en) * 2014-02-11 2016-01-05 M/A-Com Technology Solutions Holdings, Inc. High power and high linearity cascode amplifier
US10608588B2 (en) * 2017-12-26 2020-03-31 Nxp Usa, Inc. Amplifiers and related integrated circuits

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424858A (en) 1964-02-28 1969-01-28 Gen Electric Co Ltd Line communications system including an electric amplifier composed of similar transistors
US3733514A (en) 1971-03-19 1973-05-15 Tektronix Inc Wide band amplifier having two separate high and low frequency paths for driving capacitive load with large amplitude signal
US3955147A (en) 1974-04-25 1976-05-04 U.S. Amplifier circuit
US4583049A (en) * 1984-06-15 1986-04-15 Trw Inc. Feed-forward circuit
EP0920123A2 (fr) * 1997-11-27 1999-06-02 Nec Corporation Circuit à sémi-conducteur dans lequel la distorsion due au changements de la température ambiante est compensée

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4706038A (en) * 1986-09-29 1987-11-10 Motorola, Inc. Wideband linear Darlington cascode amplifier
US5061903A (en) * 1990-02-27 1991-10-29 Grumman Aerospace Corporation High voltage modified cascode circuit
FR2676149A1 (fr) * 1991-04-30 1992-11-06 Philips Composants Amplificateur differentiel notamment du type a cascode.
US5742205A (en) * 1995-07-27 1998-04-21 Scientific-Atlanta, Inc. Field effect transistor cable television line amplifier
JPH10116732A (ja) * 1996-10-09 1998-05-06 Nec Corp 伝送線路トランス及びこれを使用した増幅ユニット

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3424858A (en) 1964-02-28 1969-01-28 Gen Electric Co Ltd Line communications system including an electric amplifier composed of similar transistors
US3733514A (en) 1971-03-19 1973-05-15 Tektronix Inc Wide band amplifier having two separate high and low frequency paths for driving capacitive load with large amplitude signal
US3955147A (en) 1974-04-25 1976-05-04 U.S. Amplifier circuit
US4583049A (en) * 1984-06-15 1986-04-15 Trw Inc. Feed-forward circuit
EP0920123A2 (fr) * 1997-11-27 1999-06-02 Nec Corporation Circuit à sémi-conducteur dans lequel la distorsion due au changements de la température ambiante est compensée

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003019774A2 (fr) * 2001-08-23 2003-03-06 Koninklijke Philips Electronics N.V. Circuit amplificateur de puissance haute frequence
WO2003019774A3 (fr) * 2001-08-23 2004-02-26 Koninkl Philips Electronics Nv Circuit amplificateur de puissance haute frequence
WO2003090345A1 (fr) 2002-04-19 2003-10-30 Koninklijke Philips Electronics N.V. Circuit amplificateur electronique

Also Published As

Publication number Publication date
DE60045575D1 (de) 2011-03-10
EP1149466B1 (fr) 2011-01-26
JP2003524319A (ja) 2003-08-12
EP1149466A1 (fr) 2001-10-31
US6496069B1 (en) 2002-12-17

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